Elisabeth of Bourbon of France was the first wife of King Philip IV of Spain. She was the eldest daughter of King Henry IV of France and his second spouse, Marie de' Medici, and as the mother of Marie Therese of Spain, she was the mother in law of Louis XIV.
Her family has posed several times for the famous painter Diego Velazquez, including, his painting "Las Meninas" was a portrait of the spanish princess, Marguerita Theresa, daughter of her husband with his second wife, Mariana of Austria.
This outfit is inspired in one of the several portraits of the queen painted by Velazquez.
See the outfit: [link]
more about her: [link]